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-rw-r--r--ChangeLog12
-rw-r--r--Makerules6
-rw-r--r--include/libc-symbols.h15
3 files changed, 26 insertions, 7 deletions
diff --git a/ChangeLog b/ChangeLog
index d47b2e5..6f8c416 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,15 @@
+2003-04-29 Roland McGrath <roland@redhat.com>
+
+ * configure.in: Search for AUTOCONF unconditionally.
+ Just don't complain about missing it under --without-cvs.
+ * configure: Regenerated.
+
+ * include/libc-symbols.h (__symbol_set_attribute): New macro,
+ give hidden for [SHARED] and weak for [! SHARED].
+ (symbol_set_declare): Use that. Never need weak_extern these days.
+ * Makerules ($(common-objpfx)shlib.lds): Go back to using PROVIDE.
+ Depend on $(..)Makerules.
+
2003-04-29 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/ifaddrs.c (getifaddrs): Use __ protected
diff --git a/Makerules b/Makerules
index 0929e6e..d855ae3 100644
--- a/Makerules
+++ b/Makerules
@@ -511,7 +511,7 @@ endif
ifeq (yes,$(elf))
# binutils only position loadable notes into the first page for binaries,
# not for shared objects
-$(common-objpfx)shlib.lds: $(common-objpfx)config.make
+$(common-objpfx)shlib.lds: $(common-objpfx)config.make $(..)Makerules
$(LINK.o) -shared -Wl,-O1 \
$(sysdep-LDFLAGS) $(config-LDFLAGS) $(LDFLAGS.so) \
-Wl,--verbose 2>&1 | \
@@ -519,9 +519,9 @@ $(common-objpfx)shlib.lds: $(common-objpfx)config.make
-e '/^=========/,/^=========/!d;/^=========/d' \
-e 's/^.*\.hash[ ]*:.*$$/ .note.ABI-tag : { *(.note.ABI-tag) } &/' \
-e 's/^.*\*(\.dynbss).*$$/& \
- __start___libc_freeres_ptrs = .; \
+ PROVIDE(__start___libc_freeres_ptrs = .); \
*(__libc_freeres_ptrs) \
- __stop___libc_freeres_ptrs = .;/'
+ PROVIDE(__stop___libc_freeres_ptrs = .);/'
mv -f $@T $@
common-generated += shlib.lds
diff --git a/include/libc-symbols.h b/include/libc-symbols.h
index c4bd028..79add73 100644
--- a/include/libc-symbols.h
+++ b/include/libc-symbols.h
@@ -345,11 +345,18 @@
be able to use the set's contents. */
# define symbol_set_define(set) symbol_set_declare(set)
-/* Declare SET for use in this module, if defined in another module. */
+/* Declare SET for use in this module, if defined in another module.
+ In a shared library, this is always local to that shared object.
+ For static linking, the set might be wholly absent and so we use
+ weak references. */
# define symbol_set_declare(set) \
- extern void *const __start_##set __attribute__ ((__weak__)); \
- extern void *const __stop_##set __attribute__ ((__weak__)); \
- weak_extern (__start_##set) weak_extern (__stop_##set)
+ extern void *const __start_##set __symbol_set_attribute; \
+ extern void *const __stop_##set __symbol_set_attribute;
+# ifdef SHARED
+# define __symbol_set_attribute attribute_hidden
+# else
+# define __symbol_set_attribute __attribute__ ((weak))
+# endif
/* Return a pointer (void *const *) to the first element of SET. */
# define symbol_set_first_element(set) (&__start_##set)